Electric connector

Abstract

The utility model provides an electric connector, and relates to the technical field of connectors. The electric connector comprises an insulating body, a female seat, a plug and a connecting mechanism, the female seat is connected to the insulating body, the two power supply terminals are respectively arranged at two ends of the connecting terminal assembly, and each power supply terminal comprises a middle island and a connecting shell which are integrally formed; the plug is connected to the female seat, conductive terminals are arranged at the two ends of the plug, and the two conductive terminals are connected with the two power supply terminals in a one-to-one correspondence manner; the connecting mechanism is arranged between the conductive terminals and the corresponding power supply terminals and comprises a plurality of groups of connecting contact assemblies and a plurality of anti-collapse elastic sheets, and the plurality of groups of connecting contact assemblies and the anti-collapse elastic sheets are abutted between the corresponding conductive terminals and the corresponding power supply terminals. On the premise that the strength of the electric connector is guaranteed, the plugging reliability and the contact reliability in use are improved, and therefore the use effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an electric connector. Background Art

[0002] A board-to-board connector (BTB) is a connector commonly used in electronic devices (such as mobile phones, tablet computers, etc.). Its function is to achieve mechanical and electrical interconnection between the motherboard and various modules (such as display modules, touch modules, camera modules, etc.) of the electronic device. A board-to-board connector usually consists of two parts: a plug and a socket. Both the plug and the socket are composed of a plastic body and conductive terminals connected to the plastic body. The plastic body mainly serves as insulation and positioning of the conductive terminals, and the conductive terminals mainly serve as conduction.

[0003] The female connectors in existing board-to-board connectors are rarely manufactured using the inlay process. Since the inlay process has high requirements on product precision, in order to ensure manufacturability, the connection terminals and power terminals are designed with a simplified structure and assembled. However, the simplified structure and assembled structure cannot guarantee the self-strength, plug-in reliability and contact reliability of the female connector, resulting in poor use of the female connector. Utility Model Content

[0004] The utility model aims to provide an electrical connector which, under the premise of ensuring its own strength, improves the plugging and unplugging reliability and the contact reliability during use, thereby ensuring the use effect.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Electrical connector, comprising:

[0007] Insulation body;

[0008] A female socket connected to the insulating body, the female socket comprising a connecting terminal assembly and two power terminals, the two power terminals are respectively arranged at two ends of the connecting terminal assembly, and each of the power terminals comprises an island and a connecting shell that are integrally formed;

[0009] A plug connected to a side of the female socket away from the insulating body, wherein both ends of the plug are provided with conductive terminals, and the two conductive terminals are connected to the two power terminals in a one-to-one correspondence;

[0010] The connecting mechanism is arranged between the conductive terminal and the corresponding power terminal, and includes a plurality of connecting contact assemblies and a plurality of anti-collapse spring sheets. When the conductive terminal is connected to the corresponding power terminal, the corresponding plurality of connecting contact assemblies and the plurality of anti-collapse spring sheets abut between the conductive terminal and the power terminal.

[0011] As a further technical solution, the cross-sectional shape of the connecting housing is set to be U-shaped and is snap-fitted to the insulating body, and the middle island is connected to the middle part of the connecting housing;

[0012] The conductive terminal is correspondingly arranged with the connecting housing and is snap-fitted to the connecting housing. A plurality of the anti-collapse elastic pieces are arranged on the inner wall of the connecting housing and are in contact with the outer wall of the conductive terminal. A plurality of groups of the connecting contact assemblies are arranged on the inner wall of the connecting housing and / or the outer wall of the conductive terminal.

[0013] As a further technical solution, the connecting contact assembly includes a contact bump and a contact groove. One of the contact bump and the contact groove is arranged on the inner wall of the connecting housing, and the other is arranged on the outer wall of the conductive terminal, and the contact bump and the contact groove are connected in a limiting manner.

[0014] As a further technical solution, there are two anti-collapse elastic pieces, which are respectively arranged on two opposite side walls of the connecting housing, and each anti-collapse elastic piece is provided with the contact bump.

[0015] As a further technical solution, a connecting groove is arranged on the inner wall of the connecting housing. One end of the anti-collapse elastic piece is connected to the side wall of the connecting groove, and the other end extends towards the direction close to the outer wall of the connecting housing, and the middle part of the anti-collapse elastic piece protrudes outwards in the direction away from the outer wall of the connecting housing.

[0016] As a further technical solution, both the inner wall and the outer wall of the connecting housing extend towards the direction close to the insulating body. The insulating body includes a central column and a mounting bottom frame. The central column is arranged on the upper end surface of the mounting bottom frame. First avoidance grooves are correspondingly arranged at both ends of the central column on the mounting bottom frame. When the power terminal is connected to the insulating body, the inner wall of the connecting housing abuts against the inner wall of the mounting bottom frame, and the outer wall of the connecting housing is inserted into the corresponding first avoidance groove.

[0017] As a further technical solution, a connecting skirt is arranged on the outer wall of the connecting housing, and the connecting skirt is connected to the mounting bottom frame in a limiting manner.

[0018] As a further technical solution, the connecting skirt is arranged on the end surface of the outer wall of the connecting housing close to the mounting bottom frame. A limiting groove is correspondingly arranged on the lower end surface of the mounting bottom frame corresponding to the first avoidance groove, and the connecting skirt is connected to the limiting groove.

[0019] As a further technical solution, the middle island includes a protective cover and a connecting column. The protective cover is connected to the connecting housing, and the connecting column is connected to the protective cover;

[0020] Second avoidance grooves are provided at both ends of the insulating body corresponding to the center post. When the power terminal is connected to the insulating body, one end of the protective cover corresponding to the center post is sleeved thereon, and the connecting post is inserted into the second avoidance groove.

[0021] As a further technical solution, the power terminal is set as a metal component.

[0022] Compared with the prior art, the technical advantages of the electrical connector provided by the present utility model are as follows:

[0023] 1: Since the middle island and the connecting shell are integrally formed, the structural strength of the power terminal itself can be improved, and further the self-strength of the female seat, as well as the connection strength and connection stability between the female seat and the insulating body and the plug can be improved.

[0024] 2: Since a plurality of connection contact assemblies and a plurality of anti-collapse elastic pieces are provided between the corresponding power terminal and the conductive terminal, after the power terminal is connected to the corresponding power terminal, the connection contact assemblies are abutted between the corresponding conductive terminal and the power terminal. The plurality of connection contact assemblies can improve the contact reliability between the power terminal and the corresponding conductive terminal, thereby improving the large-current passing ability of the power terminal, and further improving the subsequent use effect of the electrical connector. In addition, since the anti-collapse elastic piece is provided between the conductive terminal and the power terminal, when the power terminal is connected to the corresponding conductive terminal, the anti-collapse elastic piece is compressed, so that a connection gap appears between the conductive terminal and the power terminal, which is convenient for the connection between the power terminal and the conductive terminal; after the power terminal is connected to the corresponding conductive terminal, under the action of the resilience of the anti-collapse elastic piece, the relative position between the conductive terminal and the power terminal is restricted, thereby improving the connection strength, connection stability and plugging reliability between the power terminal and the power terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded view of the electrical connector provided by the embodiment of the present utility model;

[0026] Figure 2 is the disassembly of the electrical connector provided by the embodiment of the present utility model Figure 1 ;

[0027] Figure 3 is the disassembly of the electrical connector provided by the embodiment of the present utility model Figure 2 ;

[0028] Figure 4 is a schematic structural view of the female seat in the electrical connector provided by the embodiment of the present utility model;

[0029] Figure 5 is a cross-sectional view of the electrical connector provided by the embodiment of the present utility model.

[0030] In the figure:

[0031] 100, insulating body; 110, central column; 120, mounting base frame;

[0032] 200, female socket; 210, connection terminal assembly; 220, power terminal; 221, middle island; 2211, protective cover; 2212, connection post; 222, connection housing; 2221, connection skirt;

[0033] 300, plug; 310, conductive terminal;

[0034] 400, connection mechanism; 410, connection contact assembly; 411, contact bump; 412, contact groove; 420, anti-collapse elastic piece. Detailed implementation manners

[0035] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0036] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] Combination Figures 1 to 4 As shown, the electrical connector provided in this embodiment is manufactured by an inlay process, which can improve the plug-in reliability and contact reliability during use while ensuring its own strength. Specifically, the electrical connector includes: an insulating body 100, a female socket 200, a plug 300 and a connecting mechanism 400. The female socket 200 is connected to the insulating body 100, and the female socket 200 includes a connecting terminal assembly 210 and two power terminals 220. The two power terminals 220 are respectively arranged at the two ends of the connecting terminal assembly 210, and each power terminal 220 includes an island 221 and a connecting shell 222 that are integrally formed; the plug 300 is connected to the side of the female socket 200 away from the insulating body 100, and conductive terminals 310 are arranged at both ends of the plug 300. The two conductive terminals 310 are connected to the two power terminals 220 in a one-to-one correspondence; the connecting mechanism 400 is arranged between the conductive terminal 310 and the corresponding power terminal 220, including multiple groups of connecting contact assemblies 410 and multiple anti-collapse springs 420. When the conductive terminal 310 is connected to the corresponding power terminal 220, the corresponding multiple groups of connecting contact assemblies 410 and multiple anti-collapse springs 420 abut between the conductive terminal 310 and the power terminal 220.

[0040] Since the center island 221 and the connection shell 222 are integrally formed, the structural strength of the power terminal 220 itself can be improved, thereby improving the strength of the female socket 200 itself, as well as the connection strength and connection stability between the insulating body 100 and the plug 300.

[0041] Since there are multiple sets of connection contact components 410 and multiple anti-collapse elastic pieces 420 arranged between the corresponding power terminal 220 and the conductive terminal 310, after the power terminal 220 is connected to the corresponding power terminal 220, the connection contact components 410 abut between the corresponding conductive terminal 310 and the power terminal 220. The multiple sets of connection contact components 410 can improve the contact reliability between the power terminal 220 and the corresponding conductive terminal 310, thereby improving the ability of the power terminal 220 to conduct large currents, and further improving the subsequent use effect of the electrical connector. In addition, since the anti-collapse elastic pieces 420 are arranged between the conductive terminal 310 and the power terminal 220, when the power terminal 220 is connected to the corresponding conductive terminal 310, the anti-collapse elastic pieces 420 are compressed, creating a connection gap between the conductive terminal 310 and the power terminal 220, which facilitates the connection between the power terminal 220 and the conductive terminal 310; after the power terminal 220 is connected to the corresponding conductive terminal 310, under the action of the resilience of the anti-collapse elastic pieces 420, the relative position between the conductive terminal 310 and the power terminal 220 is restricted, thereby improving the connection strength, connection stability, and plugging and unplugging reliability between the power terminal 220 and the power terminal 220.

[0042] In order to further improve the structural strength and structural stability of the power terminal 220, in this embodiment, the power terminal 220 is provided as an integrally formed metal component.

[0043] Preferably, the connection housing 222 is provided as a U-shaped member and is snap-fitted to the insulating body 100, and the middle island 221 is connected to the middle of the connection housing 222; the connection housing 222 corresponding to the conductive terminal 310 is provided as a U-shaped member and is snap-fitted to the connection housing 222. The multiple anti-collapse elastic pieces 420 are arranged on the inner wall of the connection housing 222 and abut against the outer wall of the conductive terminal 310, and multiple sets of connection contact components 410 are arranged on the inner wall of the connection housing 222 and / or the outer wall of the conductive terminal 310.

[0044] Taking Figure 3 as an example, in this embodiment, the cross-section of the connection housing 222 in the horizontal direction is U-shaped, and the opening of the connection housing 222 is arranged downward. The connection housing 222 is sleeved on the insulating body 100; correspondingly, the conductive terminal 310 is also provided as a U-shaped member. When the conductive terminal 310 is connected to the connection housing 222, the conductive terminal 310 is located inside the connection housing 222; the multiple anti-collapse elastic pieces 420 are all arranged at intervals on the inner wall of the U-shaped connection housing 222 close to the middle island 221. After the conductive terminal 310 is connected to the connection housing 222, the conductive terminal 310 abuts against all the multiple anti-collapse elastic pieces 420 to ensure its connection strength, connection stability, and plugging and unplugging reliability. Multiple sets of connection contact components 410 are arranged between the inner wall of the U-shaped connection housing 222 close to the middle island 221 and the outer wall of the conductive terminal 310 to improve the contact reliability between the connection housing 222 and the corresponding power terminal 220.

[0045] In some other embodiments, it may also be arranged that the connecting housing 222 is located inside the conductive terminal 310. Alternatively, the conductive terminal 310 is arranged in any shape, and a U-shaped clamping groove is provided on the conductive terminal 310, and the conductive terminal 310 is connected to the corresponding U-shaped connecting housing 222 through the U-shaped clamping groove. Alternatively, a plurality of anti-collapse elastic pieces 420 are all arranged at intervals on the conductive terminal 310. Alternatively, some of the anti-collapse elastic pieces 420 are arranged at intervals on the conductive terminal 310, and some of the anti-collapse elastic pieces 420 are arranged at intervals on the U-shaped connecting housing 222.

[0046] In the optional technical solution of this embodiment, the connecting contact assembly 410 includes a contact bump 411 and a contact groove 412. One of the contact bump 411 and the contact groove 412 is arranged on the inner wall of the connecting housing 222, and the other is arranged on the outer wall of the conductive terminal 310, and the contact bump 411 and the contact groove 412 are connected in a limiting manner.

[0047] In this embodiment, five groups of connecting contact assemblies 410 are arranged, and the five groups are arranged at intervals along the inner wall of the connecting housing 222 close to the middle island 221, and the contact bumps 411 and the contact grooves 412 are alternately arranged, and the outer wall of the conductive terminal 310 is correspondingly arranged with the connecting housing 222. After the conductive terminal 310 is connected to the connecting housing 222, the contact bump 411 and the corresponding contact groove 412 are connected in a limiting manner to ensure the contact reliability between the power terminal 220 and the conductive terminal 310.

[0048] In some other embodiments, the arrangement of the connecting contact assembly 410 may also be that contact bumps 411 are arranged on the inner walls of the connecting housing 222, and contact grooves 412 are arranged on the outer walls of the corresponding conductive terminals 310; or contact grooves 412 are arranged on the inner walls of the connecting housing 222, and contact bumps 411 are arranged on the outer walls of the corresponding conductive terminals 310.

[0049] In the optional technical solution of this embodiment, two anti-collapse elastic pieces 420 are provided, which are respectively arranged on two opposite side walls of the connecting housing 222, and contact bumps 411 are arranged on each anti-collapse elastic piece 420. With such an arrangement, by arranging the contact bumps 411 on the anti-collapse elastic pieces 420, the contact reliability at the anti-collapse elastic pieces 420 is ensured, and at the same time, the overall connection stability and plugging reliability are ensured.

[0050] Furthermore, a connection groove is provided on the inner wall of the connection shell 222, one end of the anti-collapse spring sheet 420 is connected to the side wall of the connection groove, and the other end extends in the direction close to the outer wall of the connection shell 222, and the middle part of the anti-collapse spring sheet 420 protrudes outward in the direction away from the outer wall of the connection shell 222. When the power terminal 220 is connected to the corresponding conductive terminal 310, the conductive terminal 310 presses the anti-collapse spring sheet 420, so that the anti-collapse spring sheet 420 is compressed in the direction close to the outer wall of the connection shell 222, so that a connection gap appears between the conductive terminal 310 and the inner wall of the connection shell 222, which facilitates the connection between the power terminal 220 and the conductive terminal 310; after the power terminal 220 is connected to the corresponding conductive terminal 310, the anti-collapse spring sheet 420 is no longer under pressure and begins to rebound autonomously, and the two anti-collapse spring sheets 420 arranged opposite to each other cooperate with each other to clamp the conductive terminal 310, limit the relative position between the conductive terminal 310 and the connection shell 222, and ensure the contact reliability between the two. And because one end of the anti-collapse spring piece 420 is connected to the side wall of the connecting groove, the other end is a free end, and the middle part bulges outward in the direction away from the outer wall of the connecting shell 222; the elasticity and connection effect of the anti-collapse spring piece 420 are guaranteed, and the connecting groove provides an escape space for the compression and rebound of the anti-collapse spring piece 420.

[0051] Preferably, the inner wall and outer wall of the connection shell 222 both extend toward the direction close to the insulating body 100. The insulating body 100 includes a central column 110 and a mounting bottom frame 120. The central column 110 is arranged on the upper end surface of the mounting bottom frame 120. The mounting bottom frame 120 is provided with first avoidance grooves at both ends corresponding to the central column 110. When the power terminal 220 is connected to the insulating body 100, the inner wall of the connection shell 222 abuts against the inner wall of the mounting bottom frame 120, and the outer wall of the connection shell 222 is inserted into the corresponding first avoidance groove. This improves the strength of the connection shell 222 itself and the connection strength between the connection shell 222 and the insulating body 100, and at the same time limits the relative position between the connection shell 222 and the insulating body 100 in the left-right direction.

[0052] Preferably, a connecting skirt 2221 is provided on the outer wall of the connecting housing 222. The connecting skirt 2221 extends away from the connecting housing 222 and is in limit connection with the mounting bottom frame 120 to limit the relative position between the connecting housing 222 and the insulating body 100 in the up and down directions. Further, the connecting skirt 2221 is provided on the end face of the outer wall of the connecting housing 222 close to the mounting bottom frame 120 to improve the connection convenience when the connecting housing 222 is connected to the insulating body 100. A limit groove is provided on the lower end face of the mounting bottom frame 120 corresponding to the first avoidance groove, and the connecting skirt 2221 is connected to the limit groove; when the connecting skirt 2221 is connected to the limit groove, the connecting skirt 2221 is flush with the lower end face of the mounting bottom frame 120, ensuring the overall aesthetics of the electrical connector while limiting the relative position between the connecting housing 222 and the insulating body 100 in the up and down directions.

[0053] Preferably, the middle island 221 includes a protective cover 2211 and a connecting column 2212. The protective cover 2211 is connected to the connecting housing 222, and the connecting column 2212 is connected to the protective cover 2211; second avoidance grooves are provided at both ends of the insulating body 100 corresponding to the center column 110. When the power terminal 220 is connected to the insulating body 100, the protective cover 2211 covers one corresponding end of the center column 110, and the connecting column 2212 is inserted into the second avoidance groove. This way, the structural strength and compressive capacity of the middle island 221 are improved, thereby enhancing the protection effect on the center column 110.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An electrical connector, characterized in that: include: Insulating body (100); A female socket (200) connected to the insulating body (100), the female socket (200) comprising a connection terminal assembly (210) and two power terminals (220), the two power terminals (220) being respectively arranged at two ends of the connection terminal assembly (210), and each of the power terminals (220) comprising an island (221) and a connection shell (222) which are integrally formed; A plug (300) is connected to a side of the female socket (200) facing away from the insulating body (100), and conductive terminals (310) are provided at both ends of the plug (300), and the two conductive terminals (310) are connected to the two power terminals (220) in a one-to-one correspondence; The connecting mechanism (400) is arranged between the conductive terminal (310) and the corresponding power terminal (220), and comprises a plurality of connecting contact assemblies (410) and a plurality of anti-collapse spring sheets (420). When the conductive terminal (310) is connected to the corresponding power terminal (220), the corresponding plurality of connecting contact assemblies (410) and the plurality of anti-collapse spring sheets (420) abut between the conductive terminal (310) and the power terminal (220).

2. The electrical connector according to claim 1, characterized in that: The cross-sectional shape of the connecting shell (222) is set to be U-shaped and is buckled to the insulating body (100), and the middle island (221) is connected to the middle part of the connecting shell (222); The conductive terminal (310) is arranged corresponding to the connecting shell (222) and is buckled to the connecting shell (222); a plurality of anti-collapse spring sheets (420) are arranged on the inner wall of the connecting shell (222) and abut against the outer wall of the conductive terminal (310); a plurality of groups of connecting contact assemblies (410) are arranged on the inner wall of the connecting shell (222) and / or the outer wall of the conductive terminal (310).

3. The electrical connector according to claim 2, characterized in that: The connecting contact assembly (410) comprises a contact protrusion (411) and a contact groove (412), one of the contact protrusion (411) and the contact groove (412) being arranged on the inner wall of the connecting shell (222), and the other being arranged on the outer wall of the conductive terminal (310), and the contact protrusion (411) and the contact groove (412) being connected in a limiting manner.

4. The electrical connector according to claim 3, characterized in that: Two anti-collapse spring pieces (420) are provided, and are respectively arranged on two opposite side walls of the connecting shell (222), and each of the anti-collapse spring pieces (420) is provided with the contact protrusion (411).

5. The electrical connector according to claim 2, characterized in that: A connecting groove is provided on the inner wall of the connecting shell (222); one end of the anti-collapse spring sheet (420) is connected to the side wall of the connecting groove, and the other end extends toward the direction close to the outer wall of the connecting shell (222); and the middle part of the anti-collapse spring sheet (420) protrudes outward in the direction away from the outer wall of the connecting shell (222).

6. The electrical connector according to claim 1, characterized in that: The inner wall and the outer wall of the connecting shell (222) both extend in a direction close to the insulating body (100); the insulating body (100) comprises a central column (110) and a mounting base frame (120); the central column (110) is arranged on the upper end surface of the mounting base frame (120); and first avoidance grooves are arranged on the mounting base frame (120) at two ends corresponding to the central column (110); when the power terminal (220) is connected to the insulating body (100), the inner wall of the connecting shell (222) abuts against the inner wall of the mounting base frame (120), and the outer wall of the connecting shell (222) is plugged into the corresponding first avoidance groove.

7. The electrical connector according to claim 6, characterized in that: A connecting skirt (2221) is provided on the outer wall of the connecting shell (222), and the connecting skirt (2221) is position-limitingly connected to the mounting base frame (120).

8. The electrical connector according to claim 7, characterized in that: The connecting skirt (2221) is arranged on the end surface of the outer wall of the connecting shell (222) close to the mounting base frame (120), and a limiting groove is arranged on the lower end surface of the mounting base frame (120) corresponding to the first avoidance groove, and the connecting skirt (2221) is connected to the limiting groove.

9. The electrical connector according to claim 6, characterized in that: The central island (221) comprises a protective cover (2211) and a connecting column (2212), wherein the protective cover (2211) is connected to the connecting shell (222), and the connecting column (2212) is connected to the protective cover (2211); Second avoidance grooves are provided on both ends of the insulating body (100) corresponding to the central column (110); when the power terminal (220) is connected to the insulating body (100), the protective cover (2211) is covered on the corresponding end of the central column (110), and the connecting column (2212) is inserted into the second avoidance groove.

10. The electrical connector according to any one of claims 1 to 9, characterized in that: The power terminal (220) is configured as a metal component.

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